Set one up locally, review insurance policies, and call it a day. 

I recently completed one on a multifamily property and found it to be a cost-effective approach.That said, there are a couple of additional factors to consider beyond the code differences between a garage conversion and new construction:Coastal Overlay Zones – If your property is in a coastal overlay, building a ground-up ADU may require Coastal Commission review, which can add time and complexity to the process.

I'd say I have a similar review as @Don Miller.

I also looked up the google reviews and people seem to be very satisfied with their service!

Review every statement, email them with questions, and ask how you can assist them.

Does anyone have a real estate attorney recommendation to review a property management lease?

We have well over 100 Five Star Google reviews.

My goal is reviewing retirement options. 

Find a sponsor, reach out, tell them you're Canadian, they approve, review and sign LP docs, wire funds.

Lease review with a lawyer and you have now passed the costs to the tenants.